I'm pretty sure he owns this one, because he wore it one of the years he was at Mardi Gras in New Orleans - the year Sean was Bacchus, I believe.

As for the long black coat, I don't know; I don't think I ever saw him wear it anywhere else. The green suit fit him really, really well, so I've always sort of hoped he owned that one, but as he's never worn it again (that I can recall), I don't really know.